Last updated: August 31, 2025
In Calvinia, South Africa, the average temperature in December hovers around 21°C (70°F), creating a pleasant climate for outdoor activities. Expect a minimum of 6°C (43°F) and a maximum soaring up to 36°C (98°F), offering a delightful range for all preferences. You'll also encounter a modest precipitation of 14 mm (0.5 in) spread over 2 days, while the average humidity remains comfortable at 43%.
In December in Calvinia, the average temperature is 21°C (70°F). The maximum can reach up to 36°C (98°F), while the minimum can drop as low as 6°C (43°F). It's an ideal time for travelers to enjoy mild weather with the possibility of warm days and cooler evenings, perfect for both outdoor adventures and relaxing strolls.
In Calvinia in December, the precipitation amount reaches 14 mm (0.5 in) over a span of 2 days.
In Calvinia in December humidity is 43%. With an average temperature of 21°C (70°F), this humidity feels like a comfortable balance, making it pleasant for traveling as you can explore the surroundings without the discomfort of excessive moisture in the air.
In Calvinia in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Calvinia.
UV Risk Categories
Weather in Calvinia varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Calvinia, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (75°F) | 10 mm (0.4 inches) | 46% | extreme |
| February Weather | 24°C (75°F) | 8 mm (0.3 inches) | 47% | extreme |
| March Weather | 21°C (71°F) | 11 mm (0.5 inches) | 59% | extreme |
| April Weather | 18°C (65°F) | 12 mm (0.5 inches) | 64% | very high |
| May Weather | 15°C (59°F) | 12 mm (0.5 inches) | 74% | high |
| June Weather | 11°C (52°F) | 23 mm (0.9 inches) | 79% | moderate |
| July Weather | 10°C (51°F) | 23 mm (0.9 inches) | 75% | moderate |
| August Weather | 10°C (51°F) | 15 mm (0.6 inches) | 69% | high |
| September Weather | 14°C (58°F) | 8 mm (0.3 inches) | 61% | very high |
| October Weather | 18°C (64°F) | 15 mm (0.6 inches) | 52% | extreme |
| November Weather | 19°C (67°F) | 7 mm (0.3 inches) | 43% | extreme |
| December Weather | 21°C (70°F) | 14 mm (0.5 inches) | 43% | extreme |